vzlist -a
Shows list of all the VPS’s hosted on the Node.

vzctl start VEID
To start the VPS

vzctl stop VEID
To stop (Shut Down) the VPS

vzctl status VEID
To view the status of the particular VPS

vzctl stop VEID –fast
To stop the VPS quickly and forcefully

vzctl enter VEID
To enter in a particular VPS

vzctl set VEID –hostname vps.domain.com –save
To set the Hostname of a VPS

vzctl set VEID –ipadd 1.2.3.4 –save
To add a new IP to the hosting VPS

vzctl set VEID –ipdel 1.2.3.4 –save
To delete the IP from VPS

vzctl set VEID –userpasswd root:new_password –save
To reset root password of a VPS

vzctl set VEID –nameserver 1.2.3.4 –save
To add the nameserver IP’s to the VPS

vzctl exec VEID command
To run any command on a VPS from Node

vzyum VEID install package_name
To install any package/Software on a VPS from Node

**VEID refers to the ID of the Particular VPS**

login as: root
root@server’s password:
Server refused to allocate pty
stdin: is not a tty

After a quick google search I came across the fix.

[root@node /]# vzlist -a
VEID      NPROC STATUS  IP_ADDR         HOSTNAME
1337         78 running 69.10.59.80     grumpy.thelinuxnoob.com
[root@node /]# vzctl exec 1337 /sbin/MAKEDEV ptyp
[root@node /]# vzctl exec 1337 /sbin/MAKEDEV tty
[root@node /]# vzctl exec 1337 /sbin/MAKEDEV pty

The issue should now be resolved and you can SSH into the VPS.